Simplex 4905-9938 Sync Control Module

The Simplex 4905-9938 SCM (SmartSync Control Module) converts two conventional NAC inputs into a SmartSync two-wire NAC output. One NAC can be program to operate as “on-until-silenced” and would be designated as the horn control (non-coded, on continuously during alarm). A second NAC would be programmed to provide “on-until-reset” operation and would be for the visible appliance (strobe) control (also non-coded, on continuously during alarm). Power is supply by the strobe control NAC.

In addition to operating the strobe and the horn independently, the Simplex 4905-9938 SCM can be switch select to operate the horns as temporal coded, march time-coded (60 beats/minute), or on continuously. Also, strobes are activate with 1 Hz synchronize flashes. Besides, SmartSync horns sound as Temporal or March Time pattern, or continuous, controlled separately from strobes on the same circuit. Furthermore, strobes on the same circuit operate at a synchronized 1 Hz flash rate.

Features / Specifications:

• Dimensions: 4” x 4-1/8” x 1-1/4” D (102 mm x 105 mm x 32 mm); mounts in 4” (102 mm) square box
• Temperature 32° to 122° F (0° to 50° C)
• Input Voltage Range 16 VDC to 33 VDC; with a maximum ripple of 2 V peak-to-peak
• Up to 35 maximum SmartSync appliances with strobes
• Up to 40 maximum SmartSync horn-only appliances
• Strobe Control, Output NAC current, plus 30 mA @ 24 VDC for SCM operating power